Just wanted to tell you how much I love this.
I grew up in Fort McMurray, Alberta, in the 70s and 80s and they used to use the real thing in the oil sands.
They don't use them anymore, but you can still go and see the enourmous "Bucyrus Erie" they have on display up there at the Oilsands Discovery Centre. It's an important symbol in the history of my hometown, and also to me personally.
Very cool to see it in lego!